CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenue	$ 51,459	$ 38,700	$ 158,495	$ 106,208
Contract costs	39,615	30,038	123,895	82,744
General and administrative costs	6,323	4,811	18,497	13,462
Acquisition costs	0	1,247	0	1,391
Depreciation and amortization	1,721	914	5,340	2,037
Operating Costs and Expenses	47,659	37,010	147,732	99,634
Income from operations	3,800	1,690	10,763	6,574
Interest expense, net	813	562	2,659	1,284
Income before income taxes	2,987	1,128	8,104	5,290
Income tax expense	863	325	2,352	1,532
Net income	$ 2,124	$ 803	$ 5,752	$ 3,758
Net income per share - basic (in dollars per share)	$ 0.17	$ 0.07	$ 0.47	$ 0.31
Net income per share - diluted (in dollars per share)	$ 0.16	$ 0.06	$ 0.44	$ 0.29
Weighted average common stock outstanding
Basic (in shares)	12,354	12,036	12,246	12,011
Diluted (in shares)	13,228	13,077	13,050	13,048